AP1653AEM Datasheet | Asahi Kasei Microdevices

Description The AP1653 is a single-channeled white LED driver. It consists of an active PFC circuit that is constructed by a non-inverting buck-boost converter and a constant current circuit. With a single coil and three N-ch MOSFETs, the AP1653 can drive white LEDs which are connected by cascade connection. LED current is dependent on the external resistance setting. The input voltage range is from AC85V to AC275V. LED dimming is controlled by external DC signal ranging 0V to 5V, and up to 3% dimming in current ratio is available. The AP1653 integrates a self power-up circuit, a 5V regulator circuit, LED open state protection, LED short protection, over current protection for MOSFET, thermal shut down for the IC and undervoltage lockout protection (UVLO) circuits. It is able to output an error state flag and supports enable inputs. 2. Features - Output LED forward direction voltage (VF) by...